公开(公告)号：US20230340354A1

公开(公告)日：2023-10-26

申请号：US18135232

申请日：2023-04-17

申请人： NCH Corporation

发明人： J. Andrew WAYNICK ,  Alisha FARRINGTON ,  Deon COPELAND

IPC分类号： C10M105/80 ,  C10M177/00 ,  C10M171/00 ,  C10M135/10

CPC分类号： C10M105/80 ,  C10M177/00 ,  C10M171/005 ,  C10M135/10 ,  C10M2219/0463 ,  C10N2050/10

摘要： An extremely rheopectic sulfonate-based grease composition and method comprising adding overbased calcium sulfonate, overbased magnesium sulfonate, and a facilitating acid, using a particular type of overbased calcium sulfonate and/or methods for adding overbased calcium sulfonate relative to the magnesium sulfonate and facilitating acid to favor the reaction between the magnesium sulfonate and facilitating acid. A preferred overbased calcium sulfonate comprises benzene rings having multiple alkyl groups. Preferred methods comprise (1) adding all calcium sulfonate after adding the magnesium sulfonate and facilitating acid, (2) adding a first portion of calcium sulfonate with the magnesium sulfonate before adding the facilitating acid and a second portion of calcium sulfonate after the facilitating acid, and/or (3) one or more calcium sulfonate delay periods relative to adding the facilitating acid. The extremely rheopectic grease is fluid and pourable and only takes on a grease structure after milling or shearing.